A Mixed L2 Norm Regularized HRF Estimation Method for Rapid Event-Related fMRI Experiments

Figure 9

Comparison of classification accuracies with and without the LFF compensation component. Classification accuracies estimated with fivefold leave-one-out cross-validation. Each method was applied to both models with and without LFF data to investigate the impact of LFF. cHRF-MN, canonical HRF with voxels selected by MN; cHRF-LSAR, canonical HRF with voxels selected by LSAR; and cHRF-OLS, canonical HRF with voxels selected by OLS. Error bars show the standard error of the mean classification accuracy across subjects.